NSM ES 80 Series - User Manual

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ALTERNATORI SERIE

ALTERNATORS TYPE

ALTERNATEURS SERIE

AC GENERATORS

ES 80

ISTRUZIONI D`USO

Lo scopo delle presenti istruzioni é indicare agli

utilizzatori le corrette condizioni d`impiego degli

alternatori NSM.

ATTENZIONE!

Le istruzioni fornite riportano informazioni atte ad

essere utilizzate da personale tecnico qualificato;

esse devono essere integrate dalle leggi ed dalle

norme vigenti.

Le macchine elettriche rotanti presentano parti pe-

ricolose in quanto poste sotto tensione ed in rota-

zione. Pertanto un uso improprio, la carenza di

manutenzione e lo scollegamento dei dispositivi di

protezione possono essere causa di gravi danni a

persone o cose.

VERIFICHE PRELIMINARI

Al momento della ricezione si raccomanda di

esaminare l`alternatore per controllare che non

abbia subito danni durante il trasporto.

IMMAGAZZINAGGIO

Se l`alternatore non viene posto immediatamente

in servizio dovrà essere immagazzinato in luogo

coperto, pulito, e privo d`umidità.

Prima della messa in servizio dopo lunghi periodi

di inattività é consigliabile verificare la resistenza

di isolamento di tutti gli avvolgimenti. Con mac-

china a temperatura ambiente si devono misurare

valori

maggiori di 2 M

Ω

. In caso contrario bisogna pro-

cedere all`essicazione in forno

(a circa 60º-80º C).

ACCOPPIAMENTO MECCANICO

Si vedano le istruzioni per il montaggio a pag.4.

COLLEGAMENTO ELETTRICO

Verificare che i dati di targa siano conformi alle ca-

ratteristiche dell`impianto a cui l`alternatore é col-

legato. Eseguire i collegamento di pag.2. Provve-

dere anche al collegamento a terra dell`alternatore

utilizzando i morsetti predisposti.

Prima della messa in funzione é necessario verifi-

care la bontà di tutti i collegamenti e l`assenza di

impedimenti alla rotazione del rotore.

INSTALLAZIONE

Installare il gruppo in un locale ben ventilato. Fare

attenzione che le aperture di aspirazione ed

espulsione dell`aria di raffreddamento siano libere.

E' importante evitare che l`alternatore aspiri l`aria

calda espulsa dall`alternatore stesso e/o dal moto-

re primo nonchè i gas di scarico del motore.

MANUTENZIONE

L`alternatore e gli eventuali accessori devono es-

sere sempre tenuti puliti.

Verificare periodicamente che il gruppo funzioni

senza vibrazioni o rumori anomali e che il circuito

di ventilazione non sia ostruito.

INSTRUCTIONS

Object of these instructions is to give the user cor-

rect operating-conditions about NSM alternators.

ATTENTION!

The operating instructions include only the direc-

tions to be followed by the qualified personnel;

they must be supplemented by the relevant legal

provisions and standards.

Electric rotating machines have dangerous parts:

they have live and rotating components. There-

fore: improper use inadequate inspection and

maintenance and the removal of protective covers

and the disconnection of protection devices can

cause severe personal injury or property damage.

PRELIMINARY CHECKS

On receipt it is recommended to inspect the alter-

nator to find out whether it has got damages dur-

ing transportation.

STORAGE

If the alternator is not installed immediately, it

should be kept indoor, in a clean and dry place.

Before starting up the alternator after long periods

of inactivity or storage, the insulation resistance

winding is to be measured.

That should be higher than 2 M

Ω

at room tem-

perature. If this value cannot be obtained it is nec-

essary to reset the insulation drying the winding

(using an oven at 60º-80º C).

MECHANICAL COUPLING

See assembling instructions at pag.4

ELECTRIC CONNECTION

As to the electric connection, the security ruling

standard are to be complied with. Check that data

on the plate are according to the circuit features,

to which the alternator is to be connected.

Connections to be made are in pag.2. Earthing the

alternator using the suitable terminals.

Before starting up it is advisable to check the

quality of all connections and there is not obstacle

to the rotation of the rotor.

INSTALLATION

Set up the unit in a well-cooled place.

Make sure that cooling air intake and discharge

openings are free and unblocked.

It is important the alternator doesn’t such the warm

air coming from the outlet of the alternator itself

or/and from the prime mover and motors gas.

MAINTENANCE

The alternator as well as the possible accessories

should always be kept clean.

It is recommended to periodically check whether

the set operates without anomalous vibrations or

noises, and the ventilation circuit is not obstructed.

MODE D`EMPLOI

L`objet des ces instructions est d`indiquer aux uti-

lisateurs les correctes conditions d`emploi concer-

nant NSM alternateurs.

ATTENTION!

Les instructions fournies contiennent des informa-

tions destinèes au personnel qualifiè; elles doivent

etre completèes par le dispositions de loi ou par

les Normes techniques en viguer.

Les machines electriques rotatives sont des ma-

chines prèsentant des parties dangereuses car

elles sont sous tension ou en mouvement. Par

consèquent: une utilisation anormale, la non in-

spection et le dèbranchement des disposititifs de

protection peuvent entrainer de graves dommages

pour les personnes ou les choses.

VERIFICATION PRELIMINAIRES

Aprés la réception on récommande d`examiner le

alternateur afin de vérifier qu`il n`a pas été en-

dommagé pendant le transport.

STOCKAGE

Au cas où l`alternateur ne doit pas être mis en

service immédiatament, il faut le stocker dans un

endroit couvert, propre et sec. Aprés de longues

périodes d`inactivité ou de stockage, on conseille

de measurer la résistance d`isolation de enroule-

ment qui devra être au dessue de 2 M

Ω

Si l`on ne peut pas obtenir cette valeur il est né-

cessaire de remettre l`isolation en état, en séchant

l`enroulement

(utilisant un four a 60º-80º C).

ACCOUPLEMENT MECANIQUE

Voyez l`operation de montage à la pag.4.

CONNEXION ELECTRIQUE

En ce qui concerne la connexion électrique, il vaut

bien respecter les dispositions de sécurité en vi-

gueúr, et s`assurer que les données nominales

soient en conformité aux circuit auquel

l`alternateur doit être connecté. Effectué le con-

nexions de la fig.4 à la pag.2 et la mise á la terre

de l`alternateur. Avant la mise en service il est né-

cessaire de contrôler le qualité des connexions et

qu`il n`existe aucun empechement a la rotation du

rotor.

INSTALLATION

Le groupe doit être installé dans un endroit bien

ventilé. S`assurer que les ouvertures de ventilation

ne sont pas obstruées. Éviter l`aspiration de l`air

chaude émise par l`alternateur lui-meme ou par le

moteur principal et du gaz d`èchappement du

moteur.

ENTRETIEN

L`alternateur et les éventuels accessoires doivent

être toujourus propres. Vérifier périodiquement

que le groupe fonctionne sans vibrations ou bruits

anomaux, et que le circuit de ventilation ne soit

pas obstruée.

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Do you have a question about the NSM ES 80 Series and is the answer not in the manual?

This document describes the NSM ES 80 series of AC alternators, providing instructions for their correct use, installation, and maintenance.

Function Description

The NSM ES 80 series alternators are rotating electrical machines designed to generate alternating current. They are intended for various applications, likely including power generation in conjunction with prime movers like engines. The manual covers both single-bearing (B3/B9 Monosupporto) and potentially other configurations, detailing the mechanical and electrical connections required for operation.

Important Technical Specifications

The ES 80 series alternators are available in different configurations, including 50Hz and 60Hz operation, and various kVA ratings.

Electrical Specifications (from the "Resistenze avvolgimenti (20°C) e condensatori - Winding resistance (20°C) and capacitors" table):

Frequency: 50Hz (3000rpm) and 60Hz (3600rpm).
Voltage:
- 50Hz: 115/230V (standard), 120/240V (standard), and 110/220V (optional).
- 60Hz: 115/230V (standard), 120/240V (standard), and 110/220V (optional).
kVA Ratings (examples from the table):
- ES80 A: 1.0 kVA (50Hz), 1.3 kVA (60Hz)
- ES80 B: 1.5 kVA (50Hz), 2.2 kVA (60Hz)
- ES80 C: 2.2 kVA (50Hz), 3.0 kVA (60Hz)
- ES80 D: 2.7 kVA (50Hz), 3.4 kVA (60Hz)
Winding Resistance (Stator, Auxiliary, Battery Charger, Rotor) at 20°C: Values vary significantly based on the specific model (A, B, C, D) and frequency. For instance, a 50Hz ES80 A has a stator resistance of 6.50 Ω, auxiliary of 0.21 Ω, battery charger of 3.97 Ω, and rotor of 7.5 Ω. A 60Hz ES80 A has a stator resistance of 12.5 Ω, auxiliary of 0.19 Ω, battery charger of 3.97 Ω, and rotor of 7.5 Ω.
Capacitor Values: Also vary by model and frequency. For example, a 50Hz ES80 A uses an 8 µF capacitor, while a 60Hz ES80 A uses a 8 µF capacitor.
Maximum Current for One Outlet: 16A (indicated in the wiring diagram).
DC Output for Battery Charger: 12V DC.

Physical Characteristics:

The alternators feature a robust design with a flange for mechanical coupling to a prime mover.
They include an electrical board for connections and a rear inlet grill for cooling air.

Usage Features

Installation:

Preliminary Checks: Upon receipt, inspect the alternator for any transport damage.
Storage: If not immediately installed, store in a clean, dry, and covered location. Before commissioning after long storage, measure insulation resistance (should be >2 MΩ at room temperature). If lower, dry the winding in an oven at 60-80°C.
Mechanical Coupling (Single-Bearing B3/B9 Form):
1. Verify that conical coupling parts on both the alternator and motor are clean and in order.
2. Clamp the flange [F] to the drive motor (Fig. 1).
3. Apply the rod [T] for axial clamping of the rotor, screwing it tightly onto the engine shaft (Fig. 1).
4. Secure the complete alternator to its flange using 4 screws [V1] and nuts [D1] in the appropriate housings (Fig. 2).
5. Axially lock the rotor by placing and tightening the "serpress" nut [D] onto the rod using a torque spanner (25-30 Nm). Ensure the threaded part of the rod enters the rotor for a secure lock.
6. Position the rear inlet grill [C] in its proper seat (Fig. 2).
Electrical Connection:
1. Verify that the alternator's nameplate data matches the circuit characteristics.
2. Make connections as per the wiring diagram (page 2).
3. Ensure proper earthing of the alternator using the designated terminals.
4. Before starting, check all connections and ensure no obstacles impede rotor rotation.
5. Make electric connections on the electric board [Q] and place it on the frame, fixing it to the two upper screws [V2] with the appropriate two self-threading screws (Fig. 2).
6. Fix the electric board and rear inlet grill with the two self-threading screws [V3] (Fig. 2).
Ventilation: Install the unit in a well-ventilated area. Ensure cooling air intake and discharge openings are clear. Prevent the alternator from drawing in hot air expelled by itself or the prime mover, or engine exhaust gases.

Troubleshooting (Common Faults and Remedies):

No-Load Voltage After Start-Up:
- Loss of residual magnetism: Feed for one second the output terminal with a DC voltage (4.5 V - 12 V) without connecting the winding.
- Fault capacitor: Change it.
- Rotor diode failure or short circuit: Change it.
- Winding short circuit, insulation fault or loose connections: Check the winding resistance (as table) and the insulation.
Too Low No-Load Voltage:
- Speed of engine too low: Set it to 3150 rpm (50Hz) or 3750 rpm (60Hz) without load.
- Rotor diode failure or short circuit: Change it.
- Short circuit in winding: Check the winding resistance (as table).
Too High No-Load Voltage:
- Strong capacitor: Change it.
- Speed of engine too high: Set it to 3150 rpm (50Hz) or 3750 rpm (60Hz) with no load.
Incorrect No-Load Voltage, Low Voltage:
- Rotor diode failure or short circuit: Change it.
- Rotor cross-circuit or wrong speed: Check current.
- The engine speed falls off: Contact the engine specialist; too low engine power.
Excessive Heat (Over Heating):
- Ventilation aperture partially blocked: Disassemble and clean the inlet casing or front cover if necessary.
- Possible overload: Check value of load current.
Unstable Voltage:
- Loose contact: Check connections.
- Uneven rotation: Check for uniform rotation speed (contact engine specialist).
Noisy Generator:
- Broken bearing: Replace.
- Poor coupling: Check and repair.

Maintenance Features

Cleanliness: The alternator and all accessories must always be kept clean.
Periodic Checks: Regularly verify that the unit operates without anomalous vibrations or noises.
Ventilation System: Ensure the ventilation circuit is not obstructed.

NSM ES 80 Series Specifications

General

Brand	NSM
Model	ES 80 Series
Category	Industrial Equipment
Language	English

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